Paris, L'Imprimerie Royale, 1732 a. 1733. 4to. Without wrappers. Extracted from ""Mémoires de l'Academie des Sciences. Année 1730 and 1731"". Pp. 452-507 a. pp. 250-296 and 1 folded engraved plate. With engraved frontispiece and titlepage to Année 1730/1732. Clean and fine.
Reference : 51376
First appearance of these importent paper in which Reaumur reveled how he constructed his invention of the thermometer scale, the scale which bears his name. The construction of the thermometer was based on alchohol, and the scaling bases on 0 degree for the freezing point of water and 80 degree for the boiling point of water.Parkinson ""Breakthroughs"" 1730.
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